Spray-nozzle



UNITED STATES PATENT OFFICE.

WILLIAM C. LOCKHART, OF WATERLOO, INDIANA.

SPRAY-NOZZLE.

SPECIFICATION forming part of Letters Patent No. 487,628, dated December6, 1892.

Application filed May 11, 1892. Serial No. 432,637. (Model.)

To all whom it may concern.-

Be it known that I, WILLIAM C. LOCKHART, a citizen of the United States,residing at Waterloo, in the county of De Kalb and State of Indiana,have invented a new and useful Spray-Nozzle, of which the following is aspeciication.

This invention relates to spray-nozzles; and it has for its object toprovide an improved nozzle which is adapted for use upon syringes,hand-spraying devices, hose, or, in fact, upon any device employed fordistributing liquids Where it is necessary to spray the stream forvarious purposes.

To this end the invention has for its main obj ect to provide animproved nozzle simple in construction and inexpensive to manufacture,but one which provides' for a perfect conned spray which may be easilygraduated as desired.

With these and many other objects in View, which will readily appear asthe nature of the invention isvbetter understood, the same consists inthe novel construction, combination, and arrangement of partshereinafter more fully described, illustrated, and claimed.

In the accompanying drawings, Figure lis an elevation of a syringeorhand-sprayer provided with a nozzle constructed in accordance withthis invention. Fig. 2 is a perspective view of the nozzle. Fig. 3 is asectional view of the same. Fig. 4 is an enlarged detail perspective ofthe spray-pipe. Fig. 5 is an enlarged sectional view of the nozzle-sprayend.

Referring to the accompanying drawings, A represents a tapered nozzlehaving an interiorly-threaded socket B, which is designed to be securedto a syringe or hand-sprayer C, a hose, or any other liquid-distributingdevice. The other end of the nozzle A terminates in a iiared or conicalforce-chamber D, which is inclosed by the open nozzle-cap E, engagingthe eXteriorly-threaded end of the nozzle surrounding the force chamberD. Clamped over one end of the nozzle A, between the outer face of thecap E and the outer rim of the force-chamber D, is the spray-plate F.The said spray-plate F is provided in the face thereof with a narrowdischarge-slot G, from which and projecting inwardly into theforce-chamber from each side of the slot are the projecting iianges H.The said anges H are curved at their bases, so as to form outer roundededges i upon the outer face of the plate and the inner rounded portionsz" upon the inner face of said plate and directly opposite the outerconveXed portions 'L'. Now it will be seen that when the liquid ispassing through the nozzle the same collects under pressure in the outerforce-chamber D, which therefore intensities the discharge of the waterthrough the narrow slot in the face-plate. It will be apparent that thepressure of water bearing against the spray-plate will be directed bythe inner rounded bases t" of the opposite flanges over the top of thesame, and the liquid passing over the opposite flanges will converge tothe center of the slot, which will cause the liquid to turn at rightangles to the disposition of the slots and be ejected crosswise thereofin a thin fan-shaped sheet, breaking into the wide-spreading spray. Thewidth of the spray spreads very rapidly and at a distance of twelve feetand under ordinary circumferences is about ten feet.

By the employment of the spray-plate described the spray is confined andwill not, like ordinary nozzles, discharge the spray in every direction,thus causing a great waste of material when spraying single rows ofobjects being sprayed. 1f a row of plants or any narrow line of surfaceis to be sprayed, a half-turn of the nozzle will bring the fan-shapedstream edgewise to the obj ects being sprayed, and th us distribute thespray over a large area. By changing the spray-plate in the nozzle-capand varying the slots therein various grades of sprays can be of courseobtained, and, if

desired, by reversing the plate to have the flanges thereof projectoutwardly a thin contracted spray stream may be obtained.

The construction and many advantages of the herein-describedspray-nozzle are now thought to be apparent without further description.

Having thus described my invention, what I claim, and desire to secureby Letters Patent, is-

1. The combination, with a discharge-nozzle, of a flat spray-plateinclosing one end of said nozzle and provided with a flanged sprayslot,the flanges of the plate .projecting from one side or face thereof,substantially as set forth.

IOO

2.' The combination of a discharge-nozzle having a force-chamber at itsouter end and a iat spray-plate inolosing said chamber and provided witha spray-slot and flanges projecting from the sides of said slot intosaid chamber, substantially as set forth.

3. The combination of a nozzle having a flared force-chamber at itsouter end, a flat spray-plate inclosing said chamber and pro- Io videdwith a spray-slot, and opposite an'ges projecting from the sides of saidslot into said

